Facebook Link Thumbnail Image Dimensions
What image size should you use for your Facebook preview image?
When sharing your web site or blog on Facebook you want your post to look as good as possible to help with engagement. A good quality high resolution preview image is key to catching people’s attention and hopefully encouraging them to like, comment and share.
In our mini-series on How Do I Force Facebook To Use A Thumbnail From My Website? we showed you how to force Facebook to display the correct preview image with use of the og:image tag in the header. If you haven’t read our guide or set up og:image then we suggest you head over there now.
In this post we are moving on to what Facebook thumbnail size to use to make your post look as good as possible.
Facebook Image Aspect Ratio 1.91 1
If there’s one thing you take away from this post it should be 1.91:1 aspect ratio. That is the width of the image you share should 1.91 times the height. Sticking to this Aspect Ratio of 1.91 1, all of your images will scale nicely across the Facebook Desktop News Feed, Mobile and Sidebar.
What size should my image be to share on Facebook?
Facebook recommends you use images that are at least 1200 x 630 pixels for the best display on high resolution devices.
Use images that are at least 1200 x 630 pixels for the best display on high resolution devices. At the minimum, you should use images that are 600 x 315 pixels to display link page posts with larger images. Images can be up to 8MB in size.
This thumbnail size is best practice and unless you have a high resolution image it’s not going to be practical. So the next best image size to use is 600 x 315.
We’ve done some extensive testing and found that despite what Facebook says in its best practices for sharing, an image smaller than 600 x 315 didn’t show any preview image.
This is an example of an og:image 1200 x 630 pixels in size. The ideal image dimensions according to Facebook.
It displays well on all devices. We then tested a 630 x 315 image and found little difference in resolution on the desktop.
Going one step further we then used an image smaller than the recommended 600 x 315 but still using the 1.91:1 aspect ratio and we found it didn’t display at all. This is contrary to what Facebook state and an important note.
To all intents and purposes. The minimum image size you should aim for is 630 x 315.
Has this helped? Are you now seeing high quality thumbnail images when you share to Facebook? Share your thoughts in the comments below!
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